Alert archive / South Dakota / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Aberdeen, SD
NWS Aberdeen, SD issued this red flag warning at Jan 13, 2021, 12:40 PM MST for 5 counties in South Dakota. It took effect at Jan 14, 2021, 12:00 PM MST. It was in force for 4 hr. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 13, 2021, 12:40 PM MST (19:40 UTC)
- In effect from
- Jan 14, 2021, 12:00 PM MST
- Expired
- Jan 14, 2021, 4:00 PM MST
- In force
- 4 hr
- Issued by
- NWS Aberdeen, SD
Counties Corson County, SD, Dewey County, SD, Jones County, SD, Lyman County, SD, Stanley County, SD
The radar
The Rapid City radar (KUDX), 181 km from the middle of the area, began a volume at 19:39 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 14, 12:15 PM MST | NON-TSTM WND GST 70 | 5 Wnw Mclaughlin, SD | MESONET STATION 205 MCLAUGHLIN (SDDOT). |
| Jan 14, 12:34 PM MST | NON-TSTM WND GST 68 | 3 Se Reliance, SD | MESONET STATION 54 RELIANCE (SDDOT). |
| Jan 14, 1:06 PM MST | NON-TSTM WND GST 75 | 11 S Bullhead, SD | MESONET STATION GRRS2 BULLHEAD 10 S. |
| Jan 14, 1:41 PM MST | NON-TSTM WND GST 65 | 9 Nnw Vivian, SD | MESONET STATION 13 VIVIAN (SDDOT). |
| Jan 14, 2:14 PM MST | NON-TSTM WND GST 70 | 6 Sw Joe Creek Rec Area, SD | MESONET STATION 285 14W LOWER BRULE (SDDOT). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 7.7 hours before the alert went out and 182 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2309 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
646 WWUS83 KABR 131940 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 140 PM CST Wed Jan 13 2021 SDZ003-015-033-045-048-140345- /O.NEW.KABR.FW.W.0001.210114T1900Z-210114T2300Z/ Corson-Dewey-Stanley-Jones-Lyman- 140 PM CST Wed Jan 13 2021 /1240 PM MST Wed Jan 13 2021/ ...RED FLAG WARNING IN EFFECT FROM 1 PM CST /NOON MST/ TO 5 PM CST /4 PM MST/ THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL SOUTH DAKOTA... The National Weather Service in Aberdeen has issued a Red Flag Warning for strong wind and dry fuels, which is in effect from 1 PM CST /noon MST/ to 5 PM CST /4 PM MST/ Thursday. * AFFECTED AREA...In South Dakota, Corson, Dewey, Stanley, Jones and Lyman. * WINDS...Northwest 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...30 to 45 percent. Lowest readings over Stanley, Jones, and Lyman counties. * IMPACTS...The very strong winds will cause fire control difficulties. Any downed power lines may be an ignition source for fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ TMT
3 follow-up statements
937 WWUS83 KABR 140300 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 900 PM CST Wed Jan 13 2021 SDZ003-015-033-045-048-141200- /O.CON.KABR.FW.W.0001.210114T1900Z-210114T2300Z/ Corson-Dewey-Stanley-Jones-Lyman- 900 PM CST Wed Jan 13 2021 /800 PM MST Wed Jan 13 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM CST /NOON MST/ TO 5 PM CST /4 PM MST/ THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL SOUTH DAKOTA... * AFFECTED AREA...In South Dakota, Corson, Dewey, Stanley, Jones and Lyman. * WINDS...Northwest 40 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...30 to 45 percent. Lowest readings over Stanley, Jones, and Lyman counties. * IMPACTS...The very strong winds will cause fire control difficulties. Any downed power lines may be an ignition source for fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Telken
905 WWUS83 KABR 140847 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 247 AM CST Thu Jan 14 2021 SDZ003-015-033-045-048-142300- /O.CON.KABR.FW.W.0001.210114T1900Z-210114T2300Z/ Corson-Dewey-Stanley-Jones-Lyman- 247 AM CST Thu Jan 14 2021 /147 AM MST Thu Jan 14 2021/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM CST /NOON MST/ TO 5 PM CST /4 PM MST/ THIS AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL SOUTH DAKOTA... * AFFECTED AREA...In South Dakota, Corson, Dewey, Stanley, Jones and Lyman. * WINDS...Northwest 35 to 45 mph with gusts up to 65 mph. * RELATIVE HUMIDITY...As low as 32 percent. * IMPACTS...The very strong winds will cause fire control difficulties. Any downed power lines may be an ignition source for fires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Parkin
010 WWUS83 KABR 142302 RFWABR URGENT - FIRE WEATHER MESSAGE National Weather Service Aberdeen SD 502 PM CST Thu Jan 14 2021 SDZ003-015-033-045-048-150015- /O.EXP.KABR.FW.W.0001.000000T0000Z-210114T2300Z/ Corson-Dewey-Stanley-Jones-Lyman- 502 PM CST Thu Jan 14 2021 /402 PM MST Thu Jan 14 2021/ ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF CENTRAL SOUTH DAKOTA... Relative humidity values will increase during the overnight hours, thus the Red Flag Warning has been allowed to expire. $$ Telken
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 13, 1:37 PM MST | High Wind Warning | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 45 hr |
| Jan 13, 1:43 PM MST | Winter Storm Watch | ABR | Clark, Codington, Day, Deuel, Grant, Hamlin and 2 more | 12 hr |
Nearby
Red Flag Warnings in South Dakota, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.